I had to go beyond 16 vlans on 2 X 3550-12 switches running HSRP. I'm started sharing group numbers and was ok adding 3 more HSRP vlans but when I tried to enter the 20th vlan I get a message "MAX NUMBER OF HSRP MAC addresses exceeded". I need 24 vlans using HSRP! HELP!
A single HSRP group address can be used only on 16 VLAN interfaces. That's the limitation of the 3550 switch. See the link below for more info. Can you create a different group (#) for the other 8 VLANs.
Hi Sundar...My first 16 groups each had their own group number using HSRP, then for my next 3 VLANS I started sharing the group numbers, this got me past the 16 HSRP vlan limit but when I hit my 20th VLAN I received the out of HSRP mac address error. So I have groups 13 to 28 with 1 HSRP vlan assigned to each group with the exception of the last group 28 to which I assigned another 3 HSRP vlans to it. When I tried to add the 5th HSRP vlan to it I received the out of MAC address error.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...